CN101489748A - Underwater pelletizer - Google Patents
Underwater pelletizer Download PDFInfo
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- CN101489748A CN101489748A CN 200780027065 CN200780027065A CN101489748A CN 101489748 A CN101489748 A CN 101489748A CN 200780027065 CN200780027065 CN 200780027065 CN 200780027065 A CN200780027065 A CN 200780027065A CN 101489748 A CN101489748 A CN 101489748A
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- Prior art keywords
- shaft
- cutter
- underwater pelletizer
- piston
- cutter hub
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B9/00—Making granules
- B29B9/02—Making granules by dividing preformed material
- B29B9/06—Making granules by dividing preformed material in the form of filamentary material, e.g. combined with extrusion
- B29B9/065—Making granules by dividing preformed material in the form of filamentary material, e.g. combined with extrusion under-water, e.g. underwater pelletizers
Abstract
An underwater pelletizer for cutting extruded plastic into a flow of liquid is disclosed. The pelletizer includes a cutter hub (90) carrying at least one cutter blade (96), a cutter shaft (60) for rotationally driving the cutter hub, and a flexible torque converter (80) for connecting a motor to the cutter hub. In one embodiment, the torque converter has a first set of bushings (82) that is fastened to a face (98) of the cutter hub and a second set of bushings that is fastened to a face (64) of the cutter shaft. The disclosed pelletizer has a shaft extension (20) configured to engage a motor shaft, the shaft extension having an outer diameter having formed thereon a splined portion (38) and first (26) and second (28) sealing surfaces. A disclosed motor adaptor (40) has a seal surface (44). A water chamber plate (50) may also have a seal surface (52). A first mechanical seal (48) is illustratively configured to engage the first seal surface (26) of the shaft extension and the seal surface (44) of the motor adaptor. A second mechanical seal (49) is illustratively configured to engage the second seal surface (28) of the shaft extension and the seal surface (52) of the water chamber plate. Furthermore, a cutter shaft (60) has a splined bore (62) formed therein for engaging the splined portion (38) of the shaft extension.
Description
Technical field
The invention belongs to the field of underwater pelletizer; its end that is suitable for being installed to extruder is used for and will cuts into bead from the stream of plastic that the mould extruding is come out; these beads are transported by the current in the water tank, and wherein Qie Ge action just occurs in the described water tank.
Background technology
The extruder that is used for squeezing out from the fusion beam of plastic material plastic material has been known, and often is used.A concrete application of a kind of extruder like this is relevant with the pelleter assembly, and described pelleter assembly is installed in the end of extruder.In the such a kind of combination of extruder and pelleter, the mould that has numerous holes therein is installed in the terminal of extruder and is positioned at the porch of pelleter, and becomes the two a part.Pelleter also comprises rotary cutter member, and this rotary cutter member has and is positioned at the cutting blade that closes on die face, and wherein streams of molten plastic material flows through from die face.Rotary cutter member cuts into the bead of various different sizes with streams of plastic material, and the size of bead depends on the Extrusion Flow speed in the hole of passing in the mould and the rotary speed of toolbox.
Also have, water can be transported bead through flowing of casing from casing.
In the assembly that so a kind of extruder and pelleter combine, expectation provides a kind of and is used for promoting plastic material to flow to device the nib of mould glossily from extruder.Also expectation provides a kind of device that can be easy to enter into water tank so that the maintenance pelleter simultaneously, such as replacing the old cutting blade of toolbox, and the formation by rotary cutter member observation bead, also have cleaning die.
The cutting blade and the mould that also are expected for toolbox provide long service life.That is to say, expectation provide will last very long cutting blade.In addition, also expectation provides some to be used for adjusting automatically the device that toolbox closes on the position of die face, because along with the wearing and tearing of cutting blade, the interval between toolbox and the die face can increase.In this respect, expectation keeps cutting blade and die face and puts, thereby guarantees cleanly streams of plastic material to be cut into bead.
United States Patent (USP) the 4th, 529 shows an example of traditional underwater pelletizer No. 370 for example.
Another example of traditional underwater pelletizer is at United States Patent (USP) the 5th, 059, is illustrated in 103.Some traditional parts that are used for pelleter are at United States Patent (USP) the 4th, 621, are illustrated in 996,5,403,176,5,624,688 and 6,332,765.
Summary of the invention
An embodiment of underwater pelletizer comprises flexible torque converter disc, and this disk combines with the cutter hub with cutting blade with by motor-driven cutter drives wheel shaft.This flexible torque converter disc can adapt to the situation that does not have aligning between motor crankshaft and the die face, and keeps cutting blade to contact with die face in rotary course.In further refinement,, and provide a hyperbaric chamber for shaft extension provides mechanical seal passing motor adaptor and water chamber plate.Pass entering hole and boring and can making by the pressure that changes in the hyperbaric chamber and control hub piston of shaft extension, thereby control cutting wheel shaft leans against the pressure on the die face.In another kind of refinement, water tank has water inlet and delivery port, and described water inlet and delivery port are arranged to make that be sucked into water in the water tank forms vortex and rotate with the equidirectional of cutter hub rotation direction.In the further refinement of this embodiment, water tank, and is coupled with mould attached on the motor adaptor movably by regularly.
Description of drawings
Embodiment exemplary is described in conjunction with the following drawings, wherein:
Accompanying drawing 2 is front views of the cutting wheel shaft of accompanying drawing 1;
Accompanying drawing 3 is side views of the cutting wheel shaft of accompanying drawing 1;
Accompanying drawing 4 is top views of the cutting blade of accompanying drawing 1-3;
Accompanying drawing 5 is isometric charts of the cutting blade of accompanying drawing 1-4;
Accompanying drawing 6 is side views that the combination of the tank shell of accompanying drawing 1 and relevant water circulating apparatus is shown;
Accompanying drawing 7 is cutaway views of combination of the underwater pelletizer of accompanying drawing 1 and 6, and automatic clamp and pressure-driven parts also are shown simultaneously;
Accompanying drawing 8 is to comprise that motor shaft over-hang part, cutter shaft, hub piston, cushion disk(-sc) connect and the decomposition side view of the parts of the cutter shaft assembly of cutter hub;
Accompanying drawing 9 is the front views of an embodiment with cushion disk(-sc) of four sleeve pipes, and accompanying drawing 10 is side views of identical embodiment;
Accompanying drawing 11 and 12 is respectively the side view and the front view of an embodiment of cutter shaft;
Attached Figure 13 and 14 is respectively the side view and the front view of an embodiment of the outer extension of axle;
Accompanying drawing 15,16 and 17 is respectively rearview, side view and the front view of eight blade embodiments of cutter hub;
Accompanying drawing 18 is the side views of an embodiment that are used for the piston of by-pass valve, and wherein this by-pass valve has the outer groove of placing that is formed on piston.
The specific embodiment
For the bead that can produce relative uniform-dimension and shape and the plastics of avoiding extruding block cutting blade, just very the expectation cutting blade that can keep underwater pelletizer contacts with the die face of extrusion die.
By Gala Industries, a kind of traditional cutting blade configuration in the equipment that Inc. produces comprises an autoregistration cutting blade assembly, and this autoregistration cutting blade assembly is by spherical a connection attached on the motor shaft.Described spherical the connection is made up of cutaway ball-and-socket joint, and this ball-and-socket joint is threaded, is used for being connected with motor shaft.A pair of ball and relevant track be used to realize spherical connect and other parts of cutting blade assembly between unsteady connection.
Because axle rotates around rotation, therefore spherical the connection allows cutting blade assembly to float, and for example, moves with respect to rotation, thereby not have the situation of aligning between compensating shaft and the mould.Spherical connect mobile kept contacting of cutting blade and die face.Yet spherical the connection is used to transmit axial force in order to applying power to cutting blade assembly leaning against on the die face, and transmits radial load in order to by using motor shaft to rotate cutting blade assembly.Therefore, a large amount of power is applied on the roller bearing track, and they will promptly wear out like this.
Clean cut blade, mould and water tank also are desirable rapidly, and wherein water tank must be removed the remaining plastics of extruding so that operation that can be suitable.The plastics that traditional underwater pelletizer is extruded the hole from die face enter into water tank, and wherein plastics are cut the assembly cutting.In launch process, water tank is filled with plastics, and it must manually be removed by the operator.Water tank typically is fixedly attached on the mould, and the motor adaptor with water-stop is connected on another end of water tank movably.
The water-stop that is provided in traditional underwater pelletizer is oil seal typically, if under the effect of the hydraulic pressure of high level, this sealing is split possibly.The collapse of sealing can cause water to enter into electric machine assembly, can damage motor like this and need to replace sealing.
Traditional water tank (for example, the bottom surface) on a side of casing has water inlet, be used for the inflow of water, and (for example, the top) has outlet on opposite side, is used for the outflow of the material of water and chopping.Like this result be exactly the mobile of material be to be on the direction of passing casing.Cutting blade assembly rotates in water tank through the identical plane of the direction vector of casing to be similar to current.Therefore, the blade of cutting blade assembly in fact along with through blade rotation half current and rotate, and against second half current through blade rotation.The result is to need the next mobile driving cutting blade assembly against water in the water tank of energy of significant quantity.
The cut edge that employed traditional blade typically has two sharpenings in traditional cutting blade, these two cut edges engage with die face and are used for cutting plastics when plastics are extruded.These blades are sharpened on the opposed edges of blade body, and wherein the cut edge is formed on the relative flattened side of body, and when wear and tear in a cut edge, blade can be removed and can reverse like this.Traditional blade typically has two bolts hole and is used for blade is inserted cutting blade assembly, is engaged and leans against when rotating on the die face when cutting blade assembly like this, and blade can not be rotated away from the position below the load.Traditional blade just can not re-use when all using up two cut edges.
Accompanying drawing 1 is exploded view of the exemplary of the underwater pelletizer that improved.Motor 10 has the axle 12 that engages with shaft extension 20.Shaft extension 20 passes motor adaptor 40 and water chamber plate 50 to engage with cutter shaft 60.Two-shipper tool shaft seal assembly 48 is used to provide sealing between shaft extension 20 and the motor adaptor 40 in motor side and water chamber plate one side.Another mechanical seal and water chamber plate 50 connect to be merged into shaft extension 20 and is provided at sealing between motor adaptor 40 and the water chamber plate 50.Shaft extension 20 also engages with hub piston 70, and this hub piston 70 engages with the pressure plare 92 of cutter hub 90.
Motor shaft over-hang part 20 has the outer surface region 38 of wounded in the battle key, and when being equipped in a time-out, the outer surface region 38 of this wounded in the battle key engages with the boring 62 of the wounded in the battle key of cutter shaft 60.Cutter shaft 60 has cushion disk(-sc) composition surface 64, and this composition surface 64 is formed to engage the sleeve pipe 82 that elastic torque transmits disk 80.Cutter hub 90 also has disc engagement face 98, and this disc engagement face 98 is formed in order to engage the sleeve pipe 82 that elastic torque transmits disk 80.When being equipped in a time-out, axle 12 revolving forces that produced by motor 10 are passed on the cutter shaft 60 by shaft extension 20, transmit disks 80 from cutter shaft 60 on cutter hub 90 through elastic torques then, rotate so that cutter knife 96 leans against on the die face 152 of mould 150.
It is torque transmitters of standard that elastic torque transmits disk 80, and it is that common, the available energy that usually is applied in other energy delivery applications transmits product.In current embodiment, disk 80 is built into and allows about 5 ° of mobile stainless steel stratiform thin slices.Stainless steel can prevent the corrosion that disk 80 produces because of the water in the contact tank shell 100.The elasticity of disk 80 allows its to adapt to the angle and the parallel angular deviation of having between motor shaft 12 and the mould 150.Disk 80 only passes to cutter hub 90 with revolving force from cutter shaft 60, will not remain against necessary axial force on the die face 152 attached to the blade on the cutter hub 90 96 and do not transmit.
Notice that the arrangement of cutter hub 90, cutter shaft 60, blade 96, cushion disk(-sc) 80 and mould 150 keeps blade to lean against on the die face 152 with consistent basically pressure.This just causes blade 96 along with the rotation that it leans against on the die face 152 comes self-sharpening.By avoiding die face 152 irregular wearing and tearing, such arrangement can prolong the service life of mould 150.
As shown in the accompanying drawing 1, tank shell 100 has water inlet opening 110, delivery port opening 112 and discharge outlet 114.Water inlet 110 and delivery port 112 are formed in the water tank, and they can be parallel to each other basically and can close on the other side like this.When pelleter is equipped in a time-out, water inlet 110 and delivery port 112 are arranged with respect to the rotation of cutter hub 90, and so water just forms vortex in tank shell 100, and with the direction rotation identical with cutter hub 90.Be used for the quantity of energy of rotary cutter wheel shaft 90 when the result of Pai Lieing has reduced the plastics of extruding when cutting basically like this.So also brought improvement, and reduced obstruction for removing bead.
In the pelleter of accompanying drawing 1, tank shell 100 is fixedly attached on the water chamber plate 50, for example, bolting, wherein water chamber plate 50 is connected on the motor adaptor 40.In this embodiment, tank shell 100 forms with the automatic fixture equipment, and described automatic fixture equipment is used for engaging with mould ring 130 by automatic fixture rotor 140, and next this point will carry out detailed discussion in 7 the description in conjunction with the accompanying drawings.When pelleter is equipped in a time-out, tank shell 100 is fixedly attached on the motor 10, and is coupling in movably on mould ring 130 and the mould 150 by the clamping mechanical device.
If automatic fixture mechanical device and solution flow divider and automatically the water bypass system use the startup of pelleter and close closed procedure and can realize automation completely so.Such configuration has improved the efficient and the security of operator in whole manual procedure of system in fact.
The embodiment of accompanying drawing 1 comprises the die clamp connector 160 that is fixedly attached on the mould 150.At this moment mould 150 can be coupled on the by-pass valve 190 movably by quick-speed jigs 180.Such configuration allows the front and the back of mould 150 all to be easy to be touched rapidly, so that safeguard and cleaning.
Accompanying drawing 2 and 3 illustrates the exemplary embodiment of cutter hub 90 in the accompanying drawing 1.Accompanying drawing 2 is to have an X-rayed the front view of cutter hub in the past from the die face 152 in the face of wheel axial flange 94.Accompanying drawing 3 is side views of cutter hub.Cutter hub 90 comprises a plurality of cutter knife 96A-D, and these blades are arranged at the peripheral of cutter hub 90 and are fixed in the slit that is formed in the housing 210, for example, and the slit 214C shown in the accompanying drawing 3.These slits are formed in the housing 210 of cutter hub, and their enough wide cores 220 (as shown in the attached Figure 4 and 5) to accept and to hold each cutting blade 96 securely.Accompanying drawing 3 illustrates the slit 214 of a blade 96C who is used for installing accompanying drawing 2.With holes and a threaded bore hole 212C are formed in the housing 210 of wheel shaft 90 and are used for inserting, and in this embodiment, the sharp fixed screw 216C of awl is used for making blade 96C to aim at and be fixed therein with housing 210 through the screw hole 224 in the blade.
Attached Figure 4 and 5 illustrate the exemplary embodiment of cutting blade 96A-D.Each cutting blade 96 in fact all is symmetrical along two vertical axis A and B.The core 220 of cutting blade 96 is positioned along axle B, and the cross section with rectangle in fact is firmly held in blade in the slit 214 of cutting wheel shaft housing 210 being used for.Each cutting blade all has four cut edge 222A-D formed thereon, and wherein the cut edge is formed at and closes on core and vertical with axle A.Cut edge 222A-D forms on two facing surfaces X of blade 96 and Y.Relative cut edge is formed on the identical surface fully.For instance, edge 222A and 222C are formed on the flat surfaces Y, and edge 222B and 222D are formed on the flat surfaces X.As a result, cutting blade 96 can be removed from cutter hub 90, and can rotate, and four so whole edge 222A-D can be used for cutting before blade 96 is damaged.Realize removing and rotating blade 96 by regaining fixed screw 216, rotation and/or reversing blade 96 and the fixed screw 216 that resets.
In preferred embodiments, locating hole 224 is formed on the crosspoint of the axle A of blade 96 and axle B.The fixed screw 216 that this locating hole 224 is suitable for passing with screw thread the boring 212 in the cutter hub housing 210 engages, and described cutter hub housing 210 remains on cutting blade on the suitable position in the cutter hub 90 regularly.Such arrangement causes the cutting blade can autoregistration in cutter hub 90.The awl point of fixed screw 216 aims at blade 96 together with screw hole 224 and boring 212 in housing 210.
Accompanying drawing 6 be accompanying drawing 1 tank shell 100 be equipped in together side view, wherein tank shell is fixedly coupled on motor adaptor 40 and the motor 10 together with relevant water circulating port.Mobile observation device 230 allows to observe water and the material leaving water tank shell of extruding 100, this mobile observation device 230 connects 236 by cam and groove and is coupled on the delivery port 112, connecting 234 at its top by cam and groove in addition is coupled on the flexible pipe equipment 232, wherein flexible pipe equipment 232 receives water and bead flexible pipe, and it typically is used for the consequent material of extruding is sent to the bead drying machine.Water inlet 110 connects 237 by cam and groove and is coupled on the flexible pipe equipment 238, and wherein flexible pipe equipment 238 receives the water supply line.Operated pneumatic valve 240 is coupled on the drain outlet 114 and has the flexible pipe that flexible pipe equipment 242 is used for receiving the water that is used for discharge water tank shell 100.
Accompanying drawing 7 is that the underwater pelletizer of accompanying drawing 1 and 6 is equipped in viewgraph of cross-section together, and it also illustrates the anchor clamps and the pressure-driven parts of automation.Motor 10 is fixed on the motor adaptor 40, and this motor adaptor 40 is fixed on the water chamber plate 50.Shaft extension 20 is coupled on the motor shaft 12, and extends through hyperbaric chamber 42 and the water chamber plate 50 that forms in together with shaft extension 20 in motor adaptor 40.Mechanical shaft seal 48 forms high pressure sealing between shaft extension 20 and motor adaptor 40.Mechanical shaft seal 49 forms high pressure sealing between shaft extension 20 and water chamber plate 50.In one embodiment, mechanical shaft seal 48 and 49 is pottery and graphite disk sealings of being ordered about by stainless steel spring, during its equipment that is widely used in other is used.
Pressure regulator 250 (manual or electronic) is connected to be supplied with on the port 46, and adjusts the pressure in the hyperbaric chamber 42.Successively, the pressure in the hyperbaric chamber 42 enters hole 36 and axial drilling 34 by pressure and affects by the quantity of hub piston 70 by the pressure on the pressure plare 92 that imposes on cutting wheel shaft 90.By the pressure in the control pressure-air chamber 42, the amount that is applied to axial force on the cutting wheel shaft 90 by hub piston 70 is controlled in pelleter operation or blade grinding order.
In the embodiment of accompanying drawing 7, anchor clamps 180 are hinged quick clamp, are used to engage the die clamp connector 160 that fastened on the mould 150 and the clamp flange 192 of by-pass valve 190.Actuator 300 has driving shaft 302 and is used for driving rotationally driven gear 304.Driven gear 304 joins on the awl 140 that is fastened on the tank shell 100, in order to open or close water tank 101.By automatic control actuator 300, the opening and closing of the water bypath system of pressure regulator 250, melt diverter valve 190 and pelleter can realize automation completely.
The top water bypath system of mentioning is delivered to the flexible pipe that is connected on the hose fitting 232 that is connected with delivery port 112 with water from being connected at the flexible pipe on the hose fitting that is used for water inlet 110 238 shown in the accompanying drawing 6.Such configuration can make the water tank 100 can be by draining automatically during shutoff operation, but the inertia of keeping attached to the water in the water circulation system on hose fitting 232 and 238 flows.Be used for safeguarding and the time of interrupt run has just reduced with regard to making like this.
Accompanying drawing 8 is decomposition side views of each parts of cutter shaft assembly, comprising shaft extension 20, cutter shaft 60, hub piston 70, cushion disk(-sc) 80 and cutter hub 90.The view of this decomposition is illustrated in the O type ring 72 and 74 on the hub piston 70, and described O type ring forms sealing between the piston chamber 32 of hub piston 70 and shaft extension 20.Because the pressure in the hyperbaric chamber 42 of accompanying drawing 7 changes, hub piston 70 moves in piston chamber 32.Snap ring 76 is positioned at the end of shaft extension 20, and it stops hub piston 70 to be evicted from from piston chamber 32.
Also illustrate in the accompanying drawing 8 and be used for elasticity wheel shaft 80 is fixed on cutter shaft 60 and the fastener 84A-C that cuts on the wheel shaft 90.In this exemplary embodiment, a contacting piece 84A and 84C are fixed on disk 80 on the driving shaft 60.Another contacting piece, 84B (wherein another fastener is obstructed the view by 84B) is fixed on disk 80 on the cutting wheel shaft 90.Fastener is inserted in the sleeve pipe on the cushion disk(-sc) 80 with alternant way, and described alternant way makes on right each of the adjacent casing on the cushion disk(-sc) 80 all is fixed cutter shaft 60 and cutting wheel shaft 90 not same.Thereby this configuration can make the misalignment between disk bending adjusting cutter shaft 60 and the cutting wheel shaft 90.
Accompanying drawing 8 also shows pressure plare 92 is fixed to retainer ring 66 on the cutter hub 90.
Accompanying drawing 9 is the front views of an embodiment with cushion disk(-sc) 80 of four sleeve pipe 82A-D, and accompanying drawing 10 is side views of identical embodiment.Because with the fixing embodiment of cushion disk(-sc) 80 of interactive mode, sleeve pipe 82A and 82C are fixed on the cutter shaft 60, and sleeve pipe 82B and 82D are coupled on the cutter hub 90.Other configuration also is possible, as will use a large amount of sleeve pipes in other embodiment.
Accompanying drawing 11 and 12 is respectively the side view and the front view of an embodiment of cutter shaft 60.Attention is in an exemplary embodiment, be formed for engaging the disc engagement face 64 that elastic torque transmits disk 80 and comprise threaded bore 362A and 362B, be used to receive the fastener 84A and the 84C of accompanying drawing 8, be fixed on the cutter shaft 60 with sleeve pipe 82A and 82C with cushion disk(-sc) 80.Be also noted that recess 364A and 364B, it holds 84B and another fastener (this fastener is blocked sight line in accompanying drawing 8), is used for sleeve pipe 82B and 82D are fixed to cutting wheel shaft 90.The size of noting recess 364A and 364B preferably is greater than the head of fastener 84B to allow the bending in the disk 80.Be also noted that in accompanying drawing 12, the surface 366 of the wounded in the battle key of the boring 62 of wounded in the battle key is used to be contained in the outer surface 38 of the wounded in the battle key of the shaft extension 20 shown in the accompanying drawing 14.
Attached Figure 13 and 14 is respectively the side view and the front view of an embodiment of shaft extension 20.As mentioned above, piston chamber 32 enters hole 36 by axial drilling 34 and pressure and is connected, and ought be equipped in a time-out like this, and pressure enters hole 36 and will be connected with the hyperbaric chamber 42 of the motor adaptor 40 shown in the accompanying drawing 7.Shaft extension 20 has the outer surface region 38 of wounded in the battle key, and when being equipped in a time-out, the outer surface region 38 of this wounded in the battle key engages with the boring 62 of the wounded in the battle key of cutter shaft 60.
As shown in the accompanying drawing 14, shaft extension 20 has the outer surface region 38 of wounded in the battle key, and when being equipped in a time-out, the outer surface region of this wounded in the battle key engages with the boring 62 of the wounded in the battle key of cutter shaft 60, as shown in the accompanying drawing 12.The spline of the boring 62 of wounded in the battle key can form by the inner surface of gear cutting or grinding boring 62, will make shaft extension 20 carry out strong the joint with cutter shaft 60 like this.As shown in attached Figure 13 and 14, sealing surfaces 26 is used to make mechanical shaft seal 48 to settle and leans against on the sealing surfaces 44 of motor adaptor 40, as shown in Figure 1.As shown in the accompanying drawing 13, engage on the sealing surfaces 52 that another sealing surfaces 28 is used to make second mechanical shaft seal lean against water chamber plate 50, as shown in the accompanying drawing 1.
Accompanying drawing 15,16 and 17 is respectively rearview, side view and the front view of eight blade embodiments of cutter hub 90B.Accompanying drawing 14 shows to be formed and is used for engaging the disc engagement face 398 that elasticity is turned round transmission disk 80.In this embodiment, disc engagement face comprises threaded bore 392A and 392B, is used for holding fastener 84B and another fastener (being blocked sight line at accompanying drawing 8), sleeve pipe 82B and 82D is fixed on the cutting wheel shaft 90 being used for.Be also noted that the recess 394A and the 394B that match with fastener 84A and 84C in the accompanying drawing 8 are used for the sleeve pipe 82A and the 82C of cushion disk(-sc) 80 are fixed on cutter shaft 60.Notice that recess 394A and 394B preferred sizes are greater than the size of fastener 84A and 84C head, like this to allow in disk 80, to carry out bending.
Formed slit 414 is used to hold cutting blade on wheel shaft 390 bodies, as previously discussed.Threaded bore 412A is formed at certain angle and intersects with slit 414A, and fixed screw just can be used to cutting blade is fixed on the appropriate location in the slit 414A like this.Notice that the configuration of other of cutter hub also is fine, such as the embodiment of six blades.
In one embodiment, have piston 194 at the by-pass valve 190 shown in accompanying drawing 1 and 6, this piston 194 has formation peripheral grooves thereon, as shown in the accompanying drawing 18.In this embodiment, described groove is similar to 1 inch wide and dark 1/8.Because by-pass valve piston 194 typically must obtain and by-pass valve housing 190 between tight tolerance limit, for example, mil, so piston 194 is for being very fragile because of obstruction that contaminant particle brought.In this embodiment, peripheral grooves has been stopped contaminant particle, thereby has prevented that particle from stopping up piston 194.Equally, the plastics of fusing trend towards solidifying in groove in by-pass valve 190, and help to form the sealing between piston 194 and the by-pass valve 190.
Here the list of references of being quoted comprises that public publication, patent application, patent are merged in this paper as a reference at this with identical degree, and promptly every piece of list of references all is to be incorporated among the application as a reference individually and especially and to provide it in full.
(particularly in ensuing claim) employed term " one " and " this " and similar word all are used for being construed to and comprise odd number and plural number in the content of describing when of the present invention, unless particularly pointed out or context produces tangible contradiction at this.In the number range of being narrated also only is as a kind of method for simplifying that refers to fall into each the independent numerical value in this scope respectively, unless represent other at this, and each independent numerical value is incorporated in the specification, promptly it is cited separately at this.All methods described herein can be carried out with any suitable order, unless particularly point out or tangible contradiction appears in context at this.At this provided any one or all embodiment, or exemplary language (for example, " such as ") all only be to be used for illustrating better the present invention, and be not as a kind of restriction to the scope of the invention, limit except claim is other.In specification, do not have language to constitute and point out that any is not the realization key element of the present invention that will protect.
Describe the preferred embodiment of the invention at this, comprised the best mode of realization the present invention known to the invention.Can be understood that the embodiment of being given an example is as embodiment, and should not be considered to restriction the scope of protection of the invention.
Claims (47)
1. plastics that are used for extruding cut into the underwater pelletizer that liquid flows, and this pelleter comprises:
Load the cutter hub (90) of at least one cutter knife (96);
Be used for driving rotationally the cutter shaft (60) of cutter hub; And
Flexible torque converter (80) is used for motor is connected to cutter hub, and this torque converter has the first sleeve pipe group (82) on the front (98) of the cutter hub of being secured to and is secured to the second sleeve pipe group on the front (64) of cutter shaft.
2. underwater pelletizer according to claim 1, wherein:
Cutter hub comprises the first group of recess (392) in the front (98) that is formed on cutter hub (90), each recess in described first group of recess all be configured to the first sleeve pipe group (82) in the first sleeve pipe group that matches and allow in one be secured on the cutter hub, also comprise second group of recess (394), wherein each recess in second group of recess all be configured to second group of sleeve pipe in one match; And
Cutter shaft (60) comprises the first group of recess (362) in the front (64) that is formed on cutter shaft, wherein each recess in the grouping of first group of recess all be configured to first group of sleeve pipe (82) in one match, also comprise second group of recess (396), wherein each in second group of recess all be configured to second group of sleeve pipe in the second group of sleeve pipe that match and allow in one be secured on the cutter shaft.
3. underwater pelletizer according to claim 2, wherein:
Cutter hub (90) comprises one group of screwed hole in the first group of recess that is formed on cutter hub, and wherein each screwed hole is configured to the fastener in the hole that receives in that is inserted into first group of sleeve pipe; And
Cutter shaft (60) comprises one group of screwed hole in the second group of recess that is formed on cutter shaft, and wherein each screwed hole is configured to the fastener in the hole that receives in that is inserted into second group of sleeve pipe.
4. underwater pelletizer according to claim 1, this pelleter comprises:
Shaft extension (20), this shaft extension is configured to motor shaft and engages, described shaft extension has external diameter, and the part (38) that this external diameter has formation wounded in the battle key thereon is used to engage cutter shaft and first sealing surfaces (26) and second sealing surfaces (28);
Motor adaptor (40) with sealing surfaces (44);
Water chamber plate (50) with sealing surfaces (52);
First mechanical seal (48), this first mechanical seal are configured to first sealing surfaces (26) of shaft extension and the sealing surfaces (44) of motor adaptor and engage;
Second mechanical seal (49), this second mechanical seal are configured to second sealing surfaces (28) of shaft extension and the sealing surfaces (52) of water chamber plate and engage; And
Cutter shaft (60) has the boring (62) that is formed on wounded in the battle key wherein and is used for engaging with the part (38) of the wounded in the battle key of shaft extension.
5. underwater pelletizer according to claim 4, wherein:
Shaft extension (20), motor adaptor (40), water chamber plate (50) and first and second mechanical seals (48,49) are being equipped in time-out formation hyperbaric chamber (42); And
Shaft extension has the piston chamber (32) that is formed on wherein, the axial drilling (34) that is connected with piston chamber and the pressure that is connected with axial drilling and hyperbaric chamber enters hole (36); And
Pelleter further comprises the hub piston (70) that is arranged in piston chamber (32), and this hub piston is configured to provides the pressure that leans against on the cutter hub (90).
6. underwater pelletizer according to claim 5; wherein motor adaptor (40) has and is formed on pressure port (46) wherein, that be communicated with hyperbaric chamber (42); described pelleter further comprises the pressure regulator (250) that is coupled on the pressure port, is used for controlling the pressure in hyperbaric chamber.
7. underwater pelletizer according to claim 6, wherein hub piston (70) pneumatic control of adjuster (250) that is stressed.
8. underwater pelletizer according to claim 6, wherein hub piston (70) hydraulic control of adjuster (250) that is stressed.
9. underwater pelletizer according to claim 1; described pelleter further comprises tank shell (100); this tank shell has water inlet (110) and the delivery port (112) that is formed on wherein; this tank shell is fixedly connected on the water chamber plate (50); to such an extent as to wherein water inlet and delivery port are positioned and form the vortex of water at run duration in tank shell, and the vortex of this water rotates with the identical direction of the rotation direction of cutter hub (90).
10. underwater pelletizer according to claim 9, wherein water inlet (110) is parallel in fact and adjacent one another are with delivery port (112) and be positioned.
11. underwater pelletizer according to claim 9, wherein shaft extension (20) rotates on rotation, and water inlet and delivery port are disposed on the point with the rotation skew.
12. underwater pelletizer according to claim 9, wherein pelleter further comprises:
The mould (150) that is used for extrusion plastic;
Be fixedly attached to the mould ring (130) on the mould;
Tank shell further comprises the automatic fixture equipment that is used for the mould engagement of loops; And
Be used for the automatic fixture rotor (140) of mould holder on the automatic fixture equipment of tank shell.
13. underwater pelletizer according to claim 9; tank shell (100) has the drain outlet (114) in being formed on; this pelleter further comprises the valve (240) that is coupled on the drain outlet (114), and has flexible pipe equipment (242) and be used to hold flexible pipe for tank shell (100) draining.
14. underwater pelletizer according to claim 13; pelleter further comprises first flexible pipe equipment (238) that is coupled on the water inlet (110); with second flexible pipe equipment (232) that is coupled on the delivery port (114); and further comprise the bypass between first and second flexible pipes equipments, be used to turn to flowing from the water of tank shell (100).
15. underwater pelletizer according to claim 1, wherein:
At least one cutting blade (96) has core (220), and this core has formation hole (224) therein; And
Cutter hub has the periphery, described periphery all has the slit that is formed on wherein for each cutting blade, the core that is used for fixing cutting blade, and cutter hub further has the tapped boring that is formed on wherein, itself and slit are compared and are used to adapt to a fixed screw, when being equipped in a time-out, described fixed screw engages with hole in being formed on cutting blade, makes fixed screw aim at cutting blade like this.
16. underwater pelletizer according to claim 15; wherein at least one cutting blade (96) has formation four cut edges (222A-D) approaching with core thereon; wherein at least one cutting blade can be removed from cutting blade; and be inserted and secured on again in the cutting wheel shaft, make whole four cut edges all be used like this.
17. plastics that are used for extruding cut into the underwater pelletizer of liquid stream, this pelleter comprises:
Shaft extension (20), this shaft extension are configured to engage with a motor shaft, and this shaft extension has external diameter, and external diameter has the formation part that has spline (38) and first sealing surfaces (26) and second sealing surfaces (28) thereon;
Motor adaptor (40) with sealing surfaces (44);
Water chamber plate (50) with sealing surfaces (52);
First mechanical seal (48), this first mechanical seal are configured to first sealing surfaces (26) of shaft extension and the sealing surfaces (44) of motor adaptor and engage;
Second mechanical seal (49), this second mechanical seal are configured to second sealing surfaces (28) of shaft extension and the sealing surfaces (52) of water chamber plate and engage; And
Cutter shaft (60), this cutter shaft have the boring (62) that is formed on wounded in the battle key wherein and are used for engaging with the part (38) of the wounded in the battle key of shaft extension.
18. underwater pelletizer according to claim 17, wherein:
Shaft extension (20), motor adaptor (40), water chamber plate (50) and first and second mechanical seals (48,49) form hyperbaric chamber (42) when being equipped in a time-out; And
Shaft extension has the piston chamber (32) that is formed on wherein, the axial drilling (34) that is communicated with piston chamber and the pressure that is connected with axial drilling and hyperbaric chamber enter hole (36); And
Pelleter further comprises the hub piston (70) that is arranged in piston chamber (32), and this hub piston is configured to force applications is leaned against on the cutter hub (90).
19. underwater pelletizer according to claim 18; wherein motor adaptor (40) has and is formed on pressure port (46) wherein, that be communicated with hyperbaric chamber (42); pelleter further comprises pressure regulator (25), and this pressure regulator is coupled to the pressure that is used on the pressure port control in the hyperbaric chamber.
20. underwater pelletizer according to claim 19, wherein hub piston (70) is by pressure regulator (250) pneumatic control.
21. underwater pelletizer according to claim 9, wherein hub piston (70) is by pressure regulator (250) hydraulic control.
22. underwater pelletizer according to claim 17; pelleter further comprises tank shell (100); this tank shell has water inlet (110) and the delivery port (112) that is formed on wherein; tank shell is fixedly attached on the water chamber plate (50); wherein water inlet and delivery port are positioned so that form the vortex of water at run duration in tank shell, and the vortex of described water rotates with the rotation direction identical with cutter hub (90).
23. underwater pelletizer according to claim 22, wherein water inlet (110) and delivery port (112) parallel to each other in fact and be positioned adjacent to each other.
24. underwater pelletizer according to claim 22, wherein shaft extension (20) rotates on rotation, and water inlet and delivery port with the point of rotation skew on be positioned.
25. underwater pelletizer according to claim 22, wherein pelleter further comprises:
The mould (150) that is used for extrusion plastic;
Be fixedly attached to the mould ring (130) on the mould;
Tank shell further comprises the automatic fixture equipment that is used for the mould engagement of loops; And
Automatic fixture rotor (140), this automatic fixture rotor are used for mould is clipped to the automatic fixture equipment of tank shell.
26. underwater pelletizer according to claim 22; tank shell (100) has the drain outlet (114) that is formed on wherein; pelleter further comprises the valve (240) that is coupled with drain outlet (114) and has flexible pipe equipment (242) that this flexible pipe equipment is used for receiving the flexible pipe that is used to tank shell (100) draining.
27. an extruder that is used for plastics are squeezed into liquid stream, this extruder comprises:
Motor (10) with motor shaft (12);
Load the cutter hub (90) of cutter knife (96);
Motor (10) is connected to torque converter (80) on the cutter hub (90); And
Be used to adjust the device of the angular error between motor shaft (12) and the cutter hub (90).
28. extruder according to claim 27, its middle regulator comprise sleeve pipe (64,82) a plurality of and torque converter (80) coupling.
29. extruder according to claim 28, its middle regulator further are included in a plurality of recesses (392) that form in the front (98) of cutter hub (90), wherein each recess (392) all is configured to and receives sleeve pipe (82).
30. extruder according to claim 29 further comprises fastener, this fastener is configured to be inserted in the sleeve pipe in one the hole.
31. extruder according to claim 27, its middle regulator is an elastomeric material.
32. extruder according to claim 27, its middle regulator allow the angular error between motor shaft and the cutter hub to reach the previously selected rotation number of degrees.
33. extruder according to claim 27 further comprises the piston (70) that is connected on the cutter hub (90).
34. extruder according to claim 33, wherein piston (70) is a hydraulic piston.
35. extruder according to claim 34, the fluid chamber (42) that further comprises pressurization is used to hold the fluid of the pressurization that is used for controlling hydraulic piston.
36. extruder according to claim 35, wherein piston (70) defines an axis, and the fluid chamber of pressurization is positioned along the axis of piston.
37. extruder according to claim 35 further comprises the mechanical seal (48) of the fluid chamber that is used to seal pressurization.
38. extruder according to claim 33, wherein piston (70) be configured to cutter hub (90) towards with move away from cutter die (150).
39. extruder according to claim 27 further comprises liquid chamber (100), this liquid chamber is configured to receiving fluids.
40. according to the described extruder of claim 39, wherein liquid is water.
41. according to the described extruder of claim 39, wherein liquid chamber (100) has inlet (110) and outlet (112).
42. according to the described extruder of claim 41, its middle outlet (112) is positioned on a part of liquid chamber (100), described liquid chamber (100) vertically is positioned on the motor shaft (12).
43. according to the described extruder of claim 42, wherein motor shaft (12) defines a vertical axis, and inlet (110) and outlet (112) are positioned on the point that is offset with vertical axis.
44. extruder according to claim 27 further comprises quick release clip (180), this quick release clip is configured to provides selectable near cutter hub (90).
45. extruder according to claim 27, wherein cutter knife (96) comprises four cutting surfaces.
46. according to the described extruder of claim 45, further comprise fixed screw, be used to engage cutter knife (96) and be located in cutter hub (90).
47. according to the described extruder of claim 46, further be included in the hole that forms in the cutter knife (96), described hole is configured to and holds fixed screw.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US81465906P | 2006-06-16 | 2006-06-16 | |
| US60/814,659 | 2006-06-16 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101489748A true CN101489748A (en) | 2009-07-22 |
Family
ID=38596163
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200780027065 Pending CN101489748A (en) | 2006-06-16 | 2007-06-18 | Underwater pelletizer |
Country Status (4)
| Country | Link |
|---|---|
| US (3) | US8083509B2 (en) |
| EP (1) | EP2029339A2 (en) |
| CN (1) | CN101489748A (en) |
| WO (1) | WO2007147162A2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102635696A (en) * | 2012-04-24 | 2012-08-15 | 大连橡胶塑料机械股份有限公司 | Mechanical sealing device for underwater pelletizing |
| CN102917848A (en) * | 2010-06-07 | 2013-02-06 | 株式会社神户制钢所 | Knife holder for underwater cutting granulator |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI549801B (en) * | 2009-06-18 | 2016-09-21 | 葛拉工業公司 | System for controlling cutter hub position in underfluid pelletizer |
| DE102009037398A1 (en) | 2009-08-13 | 2011-02-17 | Automatik Plastics Machinery Gmbh | Cutter head holder of an underwater granulator |
| DE102009057781A1 (en) * | 2009-12-10 | 2011-06-16 | Automatik Plastics Machinery Gmbh | Granulating device with a device for connecting a multi-part housing of the granulating device |
| DE202010003348U1 (en) * | 2010-03-09 | 2010-07-22 | Automatik Plastics Machinery Gmbh | Device for producing granules |
| US9630347B2 (en) * | 2013-03-15 | 2017-04-25 | Gala Industries, Inc. | Cutter hub pin drive mechanism and quick disconnect hub for an underfluid pelletizer |
| CN105492176B (en) * | 2013-08-20 | 2019-03-05 | 戈拉工业公司 | System and method for Self-aligning cutting hub assembly |
| CN107108792B (en) * | 2014-12-29 | 2021-07-16 | 陶氏环球技术有限责任公司 | Process for forming ethylene-based polymers containing oil |
| KR102418240B1 (en) * | 2016-07-01 | 2022-07-08 | 마그 갈라 인코포레이티드 | Method and apparatus for forming expanded foam pellets having a hard shell |
| MX2022013863A (en) | 2020-05-04 | 2022-11-30 | Basf Se | A process and apparatus for producing aqueous compositions of water-soluble polymers. |
| CN115570701B (en) * | 2022-10-24 | 2023-05-30 | 山东颐工材料科技股份有限公司 | Underwater granulating unit of granulator for MBS resin production |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5646966B2 (en) * | 1974-01-08 | 1981-11-06 | ||
| US4019414A (en) * | 1976-01-12 | 1977-04-26 | Monsanto Company | Strand granulation machine |
| US5059103A (en) * | 1990-07-30 | 1991-10-22 | Gala Industries, Inc. | Underwater pelletizer |
| US5358399A (en) * | 1992-04-09 | 1994-10-25 | The Japan Steel Works, Ltd. | Cutter holder device in a pelletizer |
| DE19846286C2 (en) * | 1998-10-08 | 2002-11-28 | Peter Schelauske | granulator |
| US20020176905A1 (en) * | 2001-03-22 | 2002-11-28 | Fridley Michael A. | Self-aligning cutter hub assembly |
| US7033152B2 (en) * | 2002-05-09 | 2006-04-25 | Gala Industries, Inc | Underwater pelletizer with positively controlled cutter HUB |
| AT503324B1 (en) * | 2005-05-18 | 2009-05-15 | Erema | DEVICE FOR GRANULATING |
| AT502039B1 (en) * | 2005-07-04 | 2007-01-15 | Starlinger & Co Gmbh | PLASTIC granulator |
-
2007
- 2007-06-18 EP EP07798710A patent/EP2029339A2/en not_active Withdrawn
- 2007-06-18 US US12/304,675 patent/US8083509B2/en not_active Expired - Fee Related
- 2007-06-18 WO PCT/US2007/071481 patent/WO2007147162A2/en active Application Filing
- 2007-06-18 CN CN 200780027065 patent/CN101489748A/en active Pending
-
2011
- 2011-12-27 US US13/338,029 patent/US8939744B2/en not_active Expired - Fee Related
-
2015
- 2015-01-27 US US14/606,726 patent/US20150283729A1/en not_active Abandoned
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102917848A (en) * | 2010-06-07 | 2013-02-06 | 株式会社神户制钢所 | Knife holder for underwater cutting granulator |
| CN102917848B (en) * | 2010-06-07 | 2015-12-16 | 株式会社神户制钢所 | Prilling granulator knife rest is cut in water |
| CN102635696A (en) * | 2012-04-24 | 2012-08-15 | 大连橡胶塑料机械股份有限公司 | Mechanical sealing device for underwater pelletizing |
| CN102635696B (en) * | 2012-04-24 | 2015-07-22 | 大连橡胶塑料机械股份有限公司 | Mechanical sealing device for underwater pelletizing |
Also Published As
| Publication number | Publication date |
|---|---|
| US8083509B2 (en) | 2011-12-27 |
| WO2007147162A3 (en) | 2008-03-13 |
| EP2029339A2 (en) | 2009-03-04 |
| US8939744B2 (en) | 2015-01-27 |
| US20150283729A1 (en) | 2015-10-08 |
| US20130004606A1 (en) | 2013-01-03 |
| US20090269428A1 (en) | 2009-10-29 |
| WO2007147162A2 (en) | 2007-12-21 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20090722 |